Tentering machine



NOV. 28, J- PETERSON TENTERING MACHINE Filed July 16, 1931 5 Sheets-Sheet l INVIENTORl 3772/2.

Jaim E. Paauw,

Nov. 28, 1933. '.1. E. PETERsoN TENTERING MACHINE Filed July 16, 1951 5 Sheets-Sheet 2 5H, El'. 4'

INVENTOR,

7, /anfow jah/n BY /f/ ATTORNEY Nov. 2s, 1933. J, E PETERSON 1,936,912

TENTERING MACHINE Filed July 16, 1931 5 Sheets-Sheet 3 NVENTOR, Jahn Pehfn,

BY H13 ATroR N0v- 28, 1933 J. E. PETERSON TENTERING MACHINE Filed July 16, 1951 5 SheetS-Shee't 4 15779( 6' lNvENToR J" Z'. Pezcm'on,

BY HIS ATTORNEY TENTERING MACHINE Filed July 16. 1931 5 Sheets-Sheet' 5 INVENTOR,

foi n Z1. lzarmn,

Patented Nov. 28, 1933;

f UNITEDSTATES QFFICE i" 1,936,912 TENTERING John E. Peterson, Irvington-M J.,f`assignr to' Van VlaanderenMachin'e Company, Paterson,'f v` l N. J., afcorporaton of New Jersey 1 Application .nity 16,1931. serial No. 551,129',

. lo between them lby a'rail and the twosuch vrails are adjustable towardan'd fromieach other to provide for tentering cloth indifferent widths. The

principalobjects "off-this invention are to pro# videl for a more substantial and rigid support of therails by what I term the Imain frame at the output end of the machine and to insure the mov# ability of each rail toward and from the other on said frame withless tendency than heretofore'to cramp or bind; toprovide means whereby thev ,actuation necessary to space the rails as required may bederi'ved from the `same transverse r4shaft as that by'fwhich the driving sprocketsl are driven,

tli'oughv subject tol manual control, suchv means. beingso'designed asto be more compact', reliable,` v and eflicientandalso more easily controlled than heretofore; to provide 'mea'n's whereby the lspacing ofthe railsmay be gagedfand' henceV accurately and easily determined; and to provide for housing the means to drive said shaft in a simple and practical way. i l

In' the drawings, i y Fig. 1 is a right-side elevation of the power end of the machine; H f

fFig'. `2 isa fragmentary plan thereof; I g.

shaft17;.v f

Fig 4 is a section on line 4 4, 4Fig. 2; y

Fig. 5 `is a view'somewhat similar toFig. 2 but on a larger scale and showing themecha'nisrn of the unit whereby power is transmitted from shaft 17 for moving the chainvrail structuresr toward or from each other; and,

Figs; 6,"7 and 8 are sectional views on lines 6'-6, '-'-'7` and 8-'8 of Figs. 5, 6 and 7, respectively. 1' and 2 denote two side vstandards connected by a girt 3which seats atoneendl in arecess la" of standard- 11 and. may be bolted .thereto-1 and which has its other endabuttingv and may be bolted to'standard'Z, the standardsbeing prferablyfconnecte'd by tie-rods'4. i A rigidand-strong frame, which I term the mainframe, is thus formed and, as will be seen, 'sincethechain rail" structures overhang thegirt and are seated thre- "under side to retain itin place and seatedthere-r ypasses around sprocketl 13. y

Fig. 3A is a viewJin vertical longitudinal section through the girt 3.and showing howthelpower is transmitted fromztherdrive shaftrto the main 1 f along the girt.`

Y sive and more readily assembled, and is exceed-1 on, this construction avoids elevating the raily structures at a height inconvenient tothe Y'atten'dant. Y.

Seated upon the top surfaceof the girt which is machined off so `as to present lengthwise 6d? straight surfaces v3a and slidable lengthwise there-'- of are two boxes '5 each havingdepending flangesv 5a which bear against the opposite: sides ofthe girt' sothatA their sliding movement is `confined tothe rectilinear; These boxes form'A depending 65 portions of the near ends of the'chain rail structures, in fact supporting the ends-of Ithe railsr proper and alsothe sprockets for :driving the` chains and the openers for the Vclips of ,the latter, thusrf l. f l' `70'"' VEach box has a cover flanged Iat 4 6a 'atiits on yisthe said end of the railnproper ,7j secured thereto by `screws. 8, Thecoveris-,penetrated by a shaft 9 journaled at 10 and 11 and 'carryinga 75' worm-wheel 12 withinthe box, a sprocket-- 13 y above the rail andA a circular clip-opener 14, all xe'd'to the shaft. "It" will be understoodthat each- 'chain extends :around'one ofthe sprockets and a vcompanion vsprocket at the far end ofthe rail, asl usual thej chain as `a. whole is not'showm" but '15 fdesignates ,onefof the ,component clipl links thereofwhose movable-jaw 15a is adapted` to be Vopened by the opener 14 when', the clip- S5 The two. shaftsQ, with the sprockets and-openers, are rotated byworms 16 engaged-with wormwheels Y12 v'and Ysplinecl at 17a:A tothe main shaft 17, journaled, ashereinafter stated, above'and extendingparallelywiththe girt- 3 and (freely) 90'?" through the boxes 5, thev iworrns being contained theV boxes and .conii'nedrto move therewith Heretoforegfthe -girt was ahorizontally thing, n rail and theends offthe; chain-,rail I structures', 95 'i Yarranged at a levelbut sligl'ltlygab'c'rvethe?v girt;r i

were providedvwith depending apron-like portions inward of andiwhch faced and bore against the vertical inner face of -the girt andhad'glibbedl," overhangs in reffect hooked overvthe topy edge` of the girt. Thi-s cohstruction was neither substantial nor rigid and resulted'in binding of the, rail :structures both: .as 1 toi-,the frame 'and asjto the shaft, as 17, and involved'undue expense toi manufactura 'In my construction the rail struc-y 105 tures overhang at their ends and,` through their boxes, are planted atop the girt, and so they may slide on the guidewayiformed at awithout bindingr or cramping, the construction is less expen- '116,'

. inglystrong and durable, andjat the same time the rail structures are at the level convenient to n the attendant. y

The shaft 1-7 is driven by a'sprocket-and-chain Y 5 means 18 (shown best in Fig. 3) contained within an inclined housing 2a forming part of the standard 2, the drive shaft 19 yoi the transmission thus provided being or being connected to the shaft of an electric motor 20 supported in any way, not

shown, inward of said standard; thus said transmission is housed within an already of the main frame. y The two Vrail structures may be adjusted toward and from each other along the girt 3 by a=screW existing part 21 parallel' with the shaft .-17 and journaled as hereinafter stated and engaged with nuts 22depending from the rail structures. This screw has rightand left-hand threads to engage thenuts of the two rails so that on rotation kof `the screwv .20 one way or the other the motion of the rail strucy tures will be toward or from eachother.

Themain shaft 17 and this screw are journaled in suitable bearings 17a and 21a, only those for the near ends of shaft and screw in Fig. 1 appear- 25.ing in Fig. 5, such bearings for saidends being l here provided in a housing 24 which is fixed to the girt 3 and standard 1 and forms in effect a bear.- ing support thereof.

tioned rail structures toward or from each other (Figs. 5 to 7) thus:

The main shaft has aiXed thereto within' the. 35..housing a cone `25 with which is adaptedtoengage eitherjof twocones 26 formed on asleeve 27 which is journaled in and protrudes" from the housing at right angles to the main shaft 17. (The sleeve is shown in Fig. '6 as formed in'` two 40.1 fparts, one wholly within the housing andhaving' the cones 26 and the other screwed fastfinto-it' and protruding from the housing.) This' sleeve is splined at 27a on a worm-shaft 28 whose wrm portion 28a, keyed vor otherwise aixed thereto, is ;.journaled'between thrustv bearings 29 which conne it from endwise movement. Betweenthrust bearings Bcnthe pretruding'part of the sleeve is a free collarv 31 having vdiametricpinslafwith which' engages the -kforkof a hand lever 32'ful; 'lcrumed in the housing. Shaft 17 being in rotation,fwhen the sleeve is shifted by the hand-lever one way or the other the.;wormshait'is rotated l one` way or the other from cone25 throughY one' of the cones 262.*l In theA intermediate position 'of` `the sleeveit ofcourse remainsstationary.; fThei. worm`28a1fjthe"worm-shaftmeshes with a Wormwheel`33. which is axed to the-screw 21. Thus,

according as'the lever is shiftedroneway' or ther `other,'the two'rail structureswill beshiftedtof ward or from each other by 1 :from` the'main,V shaft. v

the power 4derived In rorder to gage the extent of. such `adjustment of the two rail structures apart'I provide the kfol,-

llowing mechanism: A column 134 upstands from -cover24of a housing124 and is aflixed thereto, it

which meshes with a bevel pinion 38 Von the screw 21; screwv 36 is conned against vertical play by -a collar 39 andV ajnut 39a at the-'lowerandvupper By mechanism within'this housing-the screw 21 is'rot'ated one way or the 30,* other Yat the election'of the attendant and from shaft 17 asthe driver for adjusting the inen-v ends of the column. yBy following the movement of the pointer relativelyto the scale as hecauses Ythe rail structures to move apart er together in the Waydescribed' the attendant can determine when the desired adjustment of such structures has been attained.

,It willgbe understood that,the vrailstructures reach. some distance, as usual, `from the main frame, and for this purpose they are supported and slidable on frames 40 arranged at intervals 'of'their'length For imparting movement to said sol structures at such intervals which shall be in synchrony withthat imparted kthereto at their ends adjoining the main frame lthe construction is as .'followszrCoincident with each of the frames l40 said structures have nuts 41 engaged by rightand left-hand screws 42 parallel with screw 21'. Jour- `rvnaled in `housing 24 and 43 on saidframes -(i.,e., theimain'frame and frames 40) i's-.a shaft 44 eX- 'tending lengthwise of said structures, and this isV intergeared with the screw 21'by bevel gearing 45 and 46 and with the screws 42 by bevel gearing 47 and .48.; Thus,.when the screw 21gis rotated oner way or the otherfto adjust the output end portion offthe rail structures-toward or from each other the Vscrews 42 are correspondingly rotated with Y the result that said. structures move at the same speed throughout their entire length.

The top surfaceotthestandard.1'is about Hush-I with the .'guideway 3a, thus forming therewith ai. surface on which not only are Ythe rail structures slidable` bututhe' support V(housing 24) forv the means 28,-28a and..33 for rotating rscrew 21 is mounted.' f 1V 1 Having thus fully describedmy invention, what llclaimis:

-1.In a tenter, ihecmbinationz-df' the maisframe having a transversehorizontal girtV formed with a wide lengthwisestraight top.,guideway,apair of chain-rails-havingtheir ends overhangingj said guidewayf. rotary chain-.driving` elements revoluble in said ends with their axes'vertical and having their axial portions depending from said ends and provided with gear members,;boxes rest-Y..

ingupon and having sliding engagement with said iz/:eguideway; and confined-by the girt vto slidefalong A the guideway rectilineally, saidboxes supportingkV members,V a rotary shaftjournaled parallel with the girt, and gear members splined on said shaft:

and intergeared with the first gearimembers and confined in and'v bythe respectiveboxes to slide therewith along said shaft.

, said Vends 'of said-'rails andA containing said gear 'z vIn a tenter,`the'combinationof'supportingl structure, apairgofL chain-rail structuresslidable thereon toward-and from each other,'rotary 'j chain-drivingv means journaled .in said'rail 'structures, a drive shaft journaledin sa'id'supporting` f structure transverse vof the" raill structures'iand geared withsaidmeans and having a beveled drivy ing member,a screw journaled in the supporting structure, parallel with the shaft and `havingv screw-engagement with the railv structures, a revcluble element journaled in said supporting structuretransverse of the shaft and screw and geared with the screw, and a,` back-and-forth Sldable elementsplined to theiirst element and having beveled driven members movable with the slidable element alternately .into and outoff.l engagement withsaid drivingmember.

3. In 1a tenter, the combination .of

ture, a pair of.chain-railstructures slidable'there-` wardand from eachother including afreveluble` on toward and'lfromeach'other, means in said."v xed structurerto adjust the railv structures to- 'l screw extendingtransversely of the rail structures, a part of said ixed structure having a scale, a nut coniined by said fixed structure to move lengthwise of and having a pointer cooperative with the scale, and a screw journaled in the fixed structure parallel with the scale and geared with the first screw to rotate therewith and hav- Y ing screw-engagement with the nut.`

4. In a tenten'the combination of xed structure including a hollow column having a longitudinal slot and a'scale parallelV with theslot, a pair of chain-rail structures slidable on the xed structure toward and from each other, means iny said Xed structure to adjust the rail structures toward and from each other including a revoluble screw extending transversely of said rail structures, a nut in the column having a spline in the slot and cooperative with the` scale as a pointer, and a screw extending longitudinally through the column and journaled in the 4iixed structure and geared with the first screw to rotate therewith and having screw-engagement with the nut.

5. In a tenter, the combination of the main frame including V standards and a girtrigidly connecting them, one of said standards forming a hollow housing, a pair of-chain-rail structures vslidable on the girt toward and from each other,

rotary chain-driving means. journaled in said rail structures, a drive shaft journaled in the frame parallel with the girt and geared with said means,

y a rotary shaft from which to drive the drive shaft, and transmission vmeans between the latter shaft and drive shaft contained within the housing. A

6. -In a tenter, the combination of supporting structure including amain'frame having a transverse guideway anda support secured upon the frame, a pair of chain-rail structures slidable along the guideway,.rotary chain-driving meansV journaled in said structures, means to rotate the rst means including a rotary shaft geared therewith and extending parallel with the guideway,

for b oth the shaft and the screw, and meansV carried bythe ,support for transmitting 'rotation fromvthel shaft to the screw in either direction.

7. In a tenter, the combination of supporting movable thereon,` rotary chain-driving `means journaled in said structures, means to rotate the latter meansY including. a rotary -shaft geared therewith, a revoluble screw having a screw-en gagement with and adapted on rotation to move said structures, said shaft and screw extending transversely of said structures'and said supporti ing means including a housing in which end por-y tions of theshaft and screw are journaled, and means in the housing for transmitting rotation from the shaft to the screwf,

Y JOHN E. PETERSON.

, and a revoluble screwarranged parallel with the f shaft and having screw-engagement with' said rail structures, said support aiording bearings means, a pair of chain-rail structures laterally f 

